Electricity + Control January 2019

CONTENTS

6

Features

CONTROL SYSTEMS AND AUTOMATION 4 Smarter electrical control systems Joe Matheys, Rockwell Automation

6 Embracing automation in mining Interview with Simon Andrews, Sandvik South African Group of Companies

9 Make Industry 4.0 work for you Supplied by Nidec Control Techniques

11 Round Up

DRIVES + MOTORS + SWITCHGEAR 14 Wessels Mine cable belt conveyor upgrade John Proctor, Siemens

18 A technical guide to electrical braking: Evaluating braking power Supplied by ABB

22 Round Up

EARTHING AND LIGHTNING PROTECTION 24 DEHN Africa launches DEHNinsure Interview with Hano Oelofse 26 Lightning, load shedding and earthing Richard Evert, ELPA

26

27 Round Up

ENERGY MANAGEMENT AND ENVIRONMENTAL ENGINEERING 28 Pace-setting solar farm inaugurated at Otjikoto Arthur Tassell, Crown Publications

32 Round Up

34

PRESSURE + LEVEL MEASUREMENT + INSTRUMENTATION 34 A diamond in level measurement Supplied by VEGA Controls SA 36 Not a crack: Level measurement for natural gas Dieter Hägele, KSR Kuebler Niveau-Messtechnik AG

38 Round Up

Regulars

1

Comment

13 39 40 40

Cover article

Engineering the Future

Write @ the back

Events

2 Electricity + Control

JANUARY 2019